Sol-gel synthesis of ZnO transparent conductive films: The role of pH

- Sol-gel synthesis of ZnO and ZnO:B(Al) thin films in a range of basic pH.
- The thickness and crystallinity of films rise increasing the pH.
- The doped films exhibit a finer texture characterized by a lower porosity.
- Sheet resistance depends on pH and hydrogen annealing.
- The diffuse transmittance of ZnO films increases with pH.